Home / 671,431,399.50-1,007,100,870.93-412,686,554.70

Finding the Fourth Proportional to 671,431,399.50, 1,007,100,870.93 and 412,686,554.70

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Solution

The fourth proportional to 671,431,399.50, 1,007,100,870.93 and 412,686,554.70 is: 619,001,418.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,431,399.50 : 1,007,100,870.93 = 412,686,554.70 : x
  2. Step 2: Convert to fraction form
    671,431,399.50/1,007,100,870.93 = 412,686,554.70/x
  3. Step 3: Cross multiply
    671,431,399.50x = 1,007,100,870.93 × 412,686,554.70
  4. Step 4: Simplify right side
    671,431,399.50x = 415,616,988,659,471,040
  5. Step 5: Solve for x
    x = 415,616,988,659,471,040/671,431,399.50
  6. Step 6: Final answer
    x = 619,001,418.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.